Improvement-in grain-cradles



A. P. GR0vER.

Grain Cradle.

No. 41,2?5. Patented Jan. 12. 1864.

' UNITED STATES PATENT OFFICE.

A. P. GROVER, OF EUREKA, WISCONSIN.

IMPROVEMENT` IN GRAIN-CRADVLES.

Specification forming part of Letters Patent No. 41,215, dated January 12, 1864.

v To all whom 'it may concern'.-

Be it known that I, ALBERT P. GRovER, ot Eureka, in the county of Winnebago and State otI/Visconsin, have invented a new and useful Improvement in Grain-Cradles; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters ot reference marked thereon.

My invention consists in a peculiar construction of fingers for grain-cradles, and the construction and use of a stirrup, in connection with a yoke and braces for fastening the fingers.

In the accompanying drawings, Figure l is a perspective view ot' my improved grain-cradle. Fig. 2 is a view of the stirrup detached from the other parts. Fig. 3 is a transverse section of the lingers and scythe, showing also the front side of the yoke and portions of the brace-rods. Fig. 4 is a transverse section o my metallic finger.

My improved metallic cradle-linger is seen at C, Fig. 1, the other fingers in the cradle being made of Wood boiled or steamed in oil. The metallic finger C is made from sheet metal, which is swaged into the form of anger, the same being an imperfect tube, the back of the finger being left open. This construction ot' linger is very simple and cheap, yet very etticient. The back ot' this finger has less metal than the front. Therefore the linger is the strongest it is possible to make with a given amount of metal. The full strength of the tubular form is gained for the front of the finger, which is subject to a tensile strain, while the amount of metal in the back of the tnger is sufficient to resist the thrust-strain to which it is subjected in using the cradle. Therefore this linger is both cheaper and lighter than the tubular fingers heretofore invented. My

'to strengthen them instead of weakening them,

as is the case with common cradles, the lingers being usually bored for fastening. The neck ot' the stirrup, after passing through the yoke, receives theeyes of the Wire braces G, the whole being secured by the nuts H. The yoke E is bolted to the scythe, andthe rake-head enters a hole in snath, the outer end of the head being held by a brace, G. All the braces G and 'G' pass through the snath and are bentaside or fastened by screw-nuts upon their ends. Thus the whole cradle is firmly braced together.

Having thus fully described my invention, What I claim, and desire to secure by Letters Patent of the United States, is-

l. A metallic crad1e-nger,when made near-4 ly tubular, the back of the linger being left open, in the manner and for the purposes substantially as set forth.

2. The arrangement and combination ofyoke VE with the fingers, stirrups, and brace-rods,

substantially in the manner and for thc purposes specilied.

A. P. eEovEE.

Witnesses:

EDDY COLE, H. L. COLE. 

